(Fbuffer_base_buffer): New function.
(syms_of_buffer): defsubr them.
(reset_buffer): Don't alter intervals here.
(Fget_buffer_create): Use BUF_MARKERS. Init BUF_INTERVALS here.
(Fkill_buffer): Use BUF_MARKERS; but don't touch it in indir buf.
Likewise BUF_INTERVALS.
(init_buffer_once): Set up .text and BUF_INTERVALS
in buffer_local_symbols and buffer_defaults.
(Fkill_buffer): Don't free the text in indirect buffer.
When killing a base buffer, kill its indirect buffers first.
(set_buffer_temp): New function.
(reset_buffer_local_variables): Initialize buffer_file_type field.
(Fget_buffer_create): Initialize pt_marker, begv/zv_marker.
(set_buffer_internal): Use and update these markers.
Copy undo_list in and out of the base buffer.
(Fget_buffer_create): Init save_modiff field here.
(reset_buffer): Not here.
(Fbuffer_modified_p): Use BUF_SAVE_MODIFF.
(Fset_buffer_modified_p): Use SAVE_MODIFF.
(Fkill_buffer, list_buffers_1): Use BUF_SAVE_MODIFF.
(Fget_buffer_create): Initialize the size and text fields.
(assoc_ignore_text_properties): New function.
(Fget_buffer): Use assoc_ignore_text_properties.
(Fother_buffer): Take account of frame's buffer predicate.
(call_overlay_mod_hooks): New args AFTER, ARG1, ARG2, ARG3.
Args START, END deleted. Pass each function AFTER, ARG1 and ARG2,
and ARG3 if ARG3 is not nil.
(verify_overlay_modification): New args AFTER, ARG1, ARG2, ARG3.
Pass them to call_overlay_mod_hooks.
(Fget_buffer_create): Initialize new members of struct buffer.
(Fkill_buffer): Free memory occupied by caches.
(init_buffer_once): Set default value for cache_long_line_scans in
buffer_defaults, and give it a bit in buffer_local_flags.
(syms_of_buffer): Add DEFVAR_PER_BUFFER for cache_long_line_scans.
Return previous overlay end.
(Foverlays_at): Pass NULL for last 2 args of overlays_at.
(Fnext_overlay_change): Pass new arg to overlays_at.
(Fprevious_overlay_change): New function.
(syms_of_buffer): Initialize it.
(Fmove_overlay): Check if overlay is empty.
(Foverlay_put): Check if setting evaporate property on empty overlay.
(evaporate_overlays): New function.
Don't put in a C-d unless a single line is too long.
Read process input whenever output gets stuck.
Relocate BUF if we read input. New arg OBJECT.
(Fprocess_send_region, Fprocess_send_string, process_send_signal)
(Fprocess_send_eof): Pass new arg OBJECT.
